import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login'
import Home from '../components/home'
import Welcome from '../components/welcome'
import Users from '../views/users/users'
import Rights from '../views/perms/rights'
import Roles from '../views/perms/roles'
import Goods from '../views/goods/goods'
import Params from '../views/goods/params'
import Categories from '../views/goods/categories'
import Orders from '../views/orders/orders'
import Datas from '../views/datas/datas'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  { path: '/home', component: Home, redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: Users },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/goods', component: Goods },
      { path: '/params', component: Params },
      { path: '/categories', component: Categories },
      { path: '/orders', component: Orders },
      { path: '/reports', component: Datas }
    ]
  }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  // next() 放行 next('/login') 强制跳转

  if (to.path === '/login') {
    next()
  }
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) {
    next('/login')
  } else {
    next()
  }
})
export default router
